Pneumatic elevator.



G. a; J. BERN ERT.

PNBETMATIG ELEVATOR. APPLIUAIION FILED DEU.6,1910.

Patented Sept. 5,1911.

G. 81 J. BERNERT.

PNEUMATIC ELEVATOR.

APPLICATION nun) 11110.6, 1910.

1,002,556. 7 Patented Sept. 5,1911.

3 sans-114111131 2.

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G. & J. BERN'ERT.

PNEUMATIC ELEVATOR...

' APPLICATION FILED DEC. {3, 1910 Patented Sept. 5, 1911.

3 SHEETS-"SHEET 3.

for. adjusting such mechanical eleva.

v 1,0o2,55c.

opening of the valve,

UNITED STnTliiglfnfbENT oFFioE. 3

GEORGE BERNERT AND AGOIB BERNEBT, 01-? SUUTI-Z GERMANTOW'N, WISCONSIN.

PNEUMATIG ELEVATOR.

Specification of Letters intent.

Patented Sept. 5., 1911.

Application filed December a, 1910. Serial No. 595,922. 7

To all whom it may concern:

. Be it known that we, ("lEORGE Biennium and J AOOB BRRNER'J), both Gilli Z8115 of the United States, and rcsidenlsof South Gcrmantmvn, c

in the county of lVashinglon and State ohm Wisconsin, have invented certain new and useful Improvements in Pneumatic Elev tors; and we do hereby declare that the following is a full, clear, and exact desc'fiption thereof.

Our invention hue for its primary object to provide simple, economical and'el'lective elevators, the invention being particularly applicable to pneumatic elevators such. as shown-and described by us in our applica, tion for patent filed May 13, 1910, Serial No. 561,201, the constructicm and arrangement of which elevator is such that the p by to be elevated. delivered to an air bias-. tube through a valvecontrolled branch in such manner that the air blast from a fan is not intcrrupteatl or broken. incidental to whereby the product is discharged into eaid'air blast tube or conveyor trun r at a predetermined distance from the fan.

' Specific objects of our invention are to pro vide a simple and effective valve mechan ism; to provide'a'n auxiliary mechanical elevator whereby the product is delivered from a lower plane 10 a hopper connnunicating with the conveyei. trunk; to provide means to various elevations "with respect lo tl'a.

ceiving end, and to provide a simple, ecoi, o

tinned construction, It Wlll be seen that rotasectionlmn'g in icatcd by line 11 of Fig.

2; Fin. 2, a detail transverse section of the same as indicated by line 52--2 of Fig. 1; Fig. 3, a plan view of the'same; Fig. 4, a detail section illustrating a form of valve mechanism, the section being indicated by line el-4 of Fig. 2; Fig. 5, a side elevation of an elevator embodying the features of cur -invention"provided with an inclined receiving cl Water section, the mouth of which is below the plane of the conveyor trunk, the. elevator being illustrated as :iymlied to a 'lhreshing machine with the mechanical elevator section arranged. to receive grain from a mocha. largcd do all sectional elevation of a portion of the conveyor trunk and its, valve-com trolled grain receiving aperture, together with a portion of the mechanically operated delivery elevator section, and Fig- T, a sec a point approximately alined witli the inner" of said machine Fi 3 an en.

by characters to the, drawings,

7', the shafl; 8 ofedge of the trunk aperture, the shaft at this point being provided with a. collar against Winch abutted a circular valve 12 that is loosely inountedupon the shaft, there being a coiled. spring 13 surrounding the shaft and interposed between the valve and inner shoulder of the bearing 9, Wh? l1 bearing is provided. with an internal rec i. for the re? ccption of an extension of sale. spring.

By utilizing a valve of the above men tion of the spiral conveyer carrying grain or other product would cause said grain to .force the valve 12 in opposition to the spring froin its seat, thereby openin communicaiti'on tothe trunk below throng the aperture 4', whereby grain is delivered to said trunk, the valve being automatically closed or opened with relation to the flow of'grain therein.

The outer end of the conveyor trough 6 is suitably supported by a. pillar 14-, the up turned mouth of which conveyor formsau open hopper 15, through which grain is de liveregl to the conveyor. J ournaled in boxes 16, that are secured. to the hopper l5 is a counter-shaft 16 that carries a pulley 17 which is in belt connection with a pulley 18 that is mounted upon the fan shaft, whereby power is applied to said vmmlvr-shalt, it being understood that, while we haw shown a single set of pulleys, that the same may be provided with a series ,of stepped faces for discharge end of a conveyer trough 19pm j'ects', the trough being cut away to form a mouth 19th'rough which rain is delivered to the hopper. The troug 19 is pivotally hung about-the counter-shaftthrough bracky ets 20 that extend from sa id trough and are provided with apertures into" which the boxes-16 extend. "Thus it will be seen that the trough '19 "may beadjusted about the axes of, the counter-shaft.

The receiving end oft'rough 19 terminates with an openhopper 21 through whlch grain is discharged; the trough being provided with a spiral conveyer 2 2,*its shaft 23 being journaled in bearings at the opposite ends of said trough. The spiral c'onveyer 22 is driven from the counter-shaft 16-by a bevel gear'24a that meshes with'-- acorresponding bevel gear 2, which "bevel gear is secured to shaft' 23"-'ofsaid-spiral co'iiveyer. An

f' awn-es iS hinged was trough1-9 adjacent to one edge of its mouth 19, the apron, as shownfin Fig. 1-, being suspended by gravity in juxtaposition' 't'o "the" adjacent" side wall of the hopper 15. When the outer end of the 'conveyer trough 19 is elevated .for the purpose of'adj'ustment with relation to grain to, be delivered thereto, :the'mouth 19 of'the trough would describe" anarc of a circle'with relation to the axis of counter-- shaft 16 and, in order t6: prevent grain that is discharged" from said mouth fnom dropping outside: of the hopper 15 th gapron is provided, it'lbeing adapted space' b'e 'tween the mouth-' b tem of the eces l t "Fromm under too'd th t above I said 1 Thus said een ye 111 As sl ed to freceiv which baggcr is below the plane of the trunk 2; To provide means for delivering grain from the hagger to the pneumatlc elevator 'v eyer trough 19,is rigidly secured to the through said trunk to th'fpoint ofdelivey lnb casing"haviiig an "apertured" "air disch fi e eie t section injcominun ca ion Wardly inclined angular discharge section 262 A shaft 27 of a spiral conveyer that-is rota table in the trough section 19 extends beyond ff the intersecting joint between said trough section and opposite inclined section 26', the shaft being in; miter-gear connection with a counter-shaft 16, which is journaled in bearings of brackets 28 carried by the aforesaid trough. The counter-shaft is driven by a belt and pulley connection with the fan shaft 3. Grain is delivered to the discharge trough-section 26 and by gravity dischan'ged to the valve-controlled aperture 4 of the trunk 2, the pivoted flap-valve 12- of which is normally held closed by a spiral spring 29 that encircles a rod 29, which rod is in pivotal connection with the valve and projects through an aperture in the wall of the discharge trough section 26, there being a bracket 30 secured to said section, between open in opposition to Weight of the'grain is adjusted. v v

, In the mechanism just described, the 'conelevator air trunk, but it will be understood that the same may be adjustable as to inclination in the same manner as shown connection with the conveyer trough 1 9, illustrated in Big. 1. Q, In the operation of the device a'sfshoj" nj] in Fig. 5, the grain, after entering thetru 2, is, by the pneumatic force, discharged irrespective of length or inclination p eumat el v r-empress k t dnf; theef.

inclosing the same, an inclined trough communication with the'trough sect-ion'hav;

between conveyerf J and eountershaft, and'apulley and ;belt\ l connection bet een the counter-shaft ana 95 this arrangement resistance of the valve to :ing an open hopper rece ving endkagspiral1 con'vc'yer mounted within the-inelin ed-trou'gh a section, I a counter-.shaft, ,a mitersge'arhe, rew rf r d belt connect on not shown. In this lnstance aooasoo cured to the discharge trunk above its open ture, a spring-controlled flapvalve mounted within the box, a transversely disposed trough in con'in'mnication with the trunk aperture andg/i-neasing its valv a spiral conveyor mounted in the tram trmglgh, a vertlcal hopper extei'idlng from the a tween the spiral conve'yer and counter-shaft,

a driving belt and pulley wnneetion between the counter-shaft and fan-shaft, and

a second driving belt and pulley connection between the counter-shaft and shaft of the spiralconveyer mounted in the transverse trough. v i

3. In" a neumatic elevator having an apertured ischarge trunk, a spring-0on trolled valve for the aperture, and a hopper eonununirating with the valve-controlled aperture; the combination of a counter shaft journaied in boxes carried by the hopper, a trough having" arms journale'd about the counter-shaft, the trough being prtwided. with a discharge aperture that eon'imunicates with the hopper and an open rt ""ing hopper at its opposite end a shaft hm 11g spiral flights mounted in the hopper, a miter-gear connection between the last named. shaft and journal-shaft, and means for drivingeaid counter-shaft.

In testimony that we claim the foregoing we have hereunto set our hands at Menomonee Falls in the county of VVaukesha and State of Wisconsin in thepresence of two Witnesses.

Witnesses p KATHRYN KEs'rELL,

C. W FRASER. 

